These are some of the most frequently asked questions by
patients in our office.
Does the whitening gel harm tooth enamel?
Whitening oxidises tooth structure and produces temporary enamel
roughening. However this is very quickly reversed by minerals in
saliva. There are no long term adverse effects on tooth structure
from any of the whitening procedures.
Will whitening last forever?
No. We estimate about 2-3 years before the effect fades,
depending upon your habits and lifestyle. Most dentists recommend
an ongoing maintenance programme to keep your smile bright. And of
course regular visits to the dentist!
Will I get sensitive teeth?
This varies from patient to patient. Several factors can
contribute to sensitivity. If a patient is in need of restorations
(from decay), they have root surface exposure or thin enamel they
may experience sensitivity.
Our clinical experience shows that a high proportion of patients
experience some sensitivity with whitening. Gel flows into crevices
around teeth where enamel is thin or gum recession has occurred and
teeth can become quite sensitive to cold. Fortunately this is
temporary but in severe cases may prevent the patient from
continuing with the trays.
This problem is overcome with in-office whitening where a
barrier material protects all potentially sensitive areas before
the gel is applied.
Antibiotics have stained my teeth as a child. Can I whiten my
teeth?
Tetracycline (antibiotic) staining is the most difficult
staining to treat with whitening. In-office whitening is usually
recommended as a first resort. Two treatments will often be
necessary, depending upon the extent of discoloration. Other
options include porcelain veneers to mask the colour.
Do I have to have an examination first?
All dentists will recommend that you be screened for gum disease
and tooth decay before bleaching. If your dentist has seen you
recently you may only require a short consultation before
proceeding. In some offices this is complimentary.
If it has been more than six months since your last dental
examination and dental hygiene visit then it will be important to
have an examination. If you have open cavities or bleeding,
inflamed gums you will need to treat these problems first.
When should I whiten my teeth?
Whitening is an excellent and affordable way to give you a
beautiful smile. It is one of the most requested procedures in my
office, often as a gift for a spouse or a celebration of a special
occasion.
We do not recommend whitening in children under the age of 16.
This is because young teeth have large pulps or nerves that sit
much closer to the surface. More sensitivity can occur when bleach
penetrates the tooth surface close to the nerve.
Whitening is not recommended in breastfeeding or lactating
women.